An efficient magneto-optical trap of metastable krypton atoms

被引：19
|
作者：
Cheng, C. -F. [1 ]
Jiang, W. [1 ]
Yang, G. -M. [1 ]
Sun, Y. -R. [1 ]
Pan, H. [1 ]
Gao, Y. [1 ]
Liu, A. -W. [1 ]
Hu, S. -M. [1 ]
机构：
[1] Univ Sci & Technol China, Dept Chem Phys, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Peoples R China
来源：
REVIEW OF SCIENTIFIC INSTRUMENTS | 2010年 / 81卷 / 12期
基金：
中国国家自然科学基金;
关键词：
BEAM; KR-81;
D O I：
10.1063/1.3520133
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
We report a magneto-optical trap of metastable krypton atoms with a trap loading rate of 3 x 10(11) atoms/s and a trap capture efficiency of 3 x 10(-)5(.) The system starts with an atomic beam of metastable krypton produced in a liquid-nitrogen cooled, radio-frequency driven discharge. The metastable beam flux emerging from the discharge is 1.5 x 10(14) atoms/s/sr. The flux in the forward direction is enhanced by a factor of 156 with transverse laser cooling. The atoms are then slowed inside a Zeeman slower before captured by a magneto-optic trap. The trap efficiency can be further improved, possibly to the 10(-2) level, by gas recirculation. Such an atom trap is useful in trace analysis applications where available sample size is limited. (C) 2010 American Institute of Physics. [doi:10.1063/1.3520133]
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页数：3
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